At the Mobile World Congress in Barcelona, Yahoo introduced its Yahoo Mobile application to simplify connectivity to various mobile Web applications on the iPhone. Available in late March, the mobile app will provide access to tools such as voice search, social networks, maps, news, and instant messaging.

"We believe the new Yahoo Mobile will transform the way millions of mobile users around the world will interact with the Internet," said Marco Boerries, Yahoo's executive vice president, in a statement. "Yahoo Mobile will enable users to create their own Internet starting point on their mobile device so they can better discover, connect to, and stay informed about the people and things that are important to them."

Yahoo plans a version for other smartphones, such as BlackBerry and Windows Mobile devices, for late May.

To try a beta of Yahoo Mobile on your iPhone, go to http://mobile.yahoo.com on your handset.